Numerical Electromagnics Code

(Method of Moments)

NEC simulates the electromagnetic response of antennas and metal structures.

Jerry Burke and A. Poggio wrote the NEC/MOM family of programs at Lawrence Livermore Labs in 1981, under contract to the US navy. NEC2 was later released to the public and is now available on most computing platforms.

This website gathers together NEC2 documentation and code examples from a group of leading scientists and engineers

The BiQuad antenna is a simple 2.4GHz WLAN antenna suitable for for 802.11 use. Details on how to construct this antenna, both as stand-alone and as a parabolic dish feed can be found at this link. The NEC simulation model, and sample output, can be found here.

An HTML version of the Users Manual for NEC has been created by Peter Richeson. There are three parts to the manual:

Dave Michelson runs the NEC-LIST, a mailing list for discussion of discussing anything and everything to do with computational electromagnetics. This is a good place to discuss NEC with contributors from academic, government and industry labs around the world.Click here to join the NEC mailing list.